Surgical Treatment of Femoroacetabular Impingement
- 1 February 2005
- journal article
- clinical trial
- Published by Ovid Technologies (Wolters Kluwer Health) in The Journal of Bone & Joint Surgery
- Vol. 87 (2), 273-279
- https://doi.org/10.2106/jbjs.d.01793
Abstract
Background: In patients with symptomatic hip impingement, surgical resection of the femoral head-neck junction may improve the range of motion and relieve pain. A risk of this procedure is fracture. We evaluated the amount of resection of the anterolateral aspect of the femoral head-neck junction that can be done safely. Methods: Cadaveric proximal femoral specimens (fifteen matched pairs) were divided into three groups: 10%, 30%, or 50% of the diameter of one femoral neck was removed, and the contralateral femoral neck was left intact to serve as the control. A compressive load was applied directly to the femoral head. Peak load, stiffness, and energy to fracture were compared among the groups. Results: The energy to fracture differed significantly (p = 0.0015) among the 10%, 30%, and 50% resection groups. The peak load after the 50% resection was significantly less (p = 0.0025) than that after the 10% or 30% resection. With the numbers available, there was no significant difference in peak load between the 10% and 30% resections. Conclusions: Resection of up to 30% of the anterolateral quadrant of the head-neck junction did not significantly alter the load-bearing capacity of the proximal part of the femur. However, a 30% resection significantly decreased the amount of energy required to produce a fracture. Thirty percent should be considered to be the greatest feasible amount of resection because of the change in the pattern of the femoral head-neck response to axial loads that we observed.Keywords
This publication has 19 references indexed in Scilit:
- Anterior Femoroacetabular ImpingementPublished by Ovid Technologies (Wolters Kluwer Health) ,2004
- Anterior Femoroacetabular ImpingementPublished by Ovid Technologies (Wolters Kluwer Health) ,2004
- The contour of the femoral head-neck junction as a predictor for the risk of anterior impingementThe Journal of Bone and Joint Surgery, 2002
- Early lesions of the labrum and acetabular cartilage in osteonecrosis of the femoral headThe Journal of Bone and Joint Surgery, 2002
- Surgical dislocation of the adult hipThe Journal of Bone and Joint Surgery, 2001
- Slipped capital femoral epiphysis: Early mechanical damage to the acetabular cartilage by a prominent femoral metaphysisActa Orthopaedica, 2000
- The Geometry of Slipped Capital Femoral Epiphysis: Implications for Movement, Impingement, and Corrective OsteotomyJournal of Pediatric Orthopaedics, 1999
- Retroversion of the acetabulumThe Journal of Bone and Joint Surgery, 1999
- Evaluation Of The Acetabular Labrum By MR ArthrographyThe Journal of Bone and Joint Surgery, 1997
- The Aetiology of Primary Osteoarthritis of the HipThe British Journal of Radiology, 1965